Improved spring-bed bottom



I 'PATENTBD'OGT. 19, 1869. W. N. 000K. SPRING BED BOTTOM.

w. NEWTON 000K. or GRAND curios, 'IM'IGHIGAN.

Letters: Patent No. 95,880, dated October 19, 1869. I

m nvrrnovnn spams-sen BOTTOM.

The Schedule referred to in these Letterl 'Patent and making part of the name.

Be it known that I, W. NEWTON UOOK, of the city of Grand Rapids, in the county of Kent, and State of Michigan, have invented a certain new and useful Improvemcnt in Spring-Bed Bottoms; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying'drawings, and to the letters o'f reference marked I thereon.

In the drawingsa Figure 1 is .a perspective view of the spring-bed bottom.

Figure 2 is a longitudinal section, through the centre ot' the same.

Figure 3 is a transverse central section of the same,

showing the spriug bed bottom in its place on the bedstead.

: Figure 4 is a perspective inside view, showing one end of a side rail of the ordinary bedstead in common;

The nature of my invention consists- First, in providing the bed-bottom with an elastic guide-bar, whereby lateral motion of the bed is controlled, and a central and horizontal position of the upper frame. preserved;

Second, in constructing the upper and lower names of the bed-bottom of unequal length andwidth; for the sary.

In order to enable others skilled in the art to make and use my invention, I will now proceed-to describe its construction and operation.

A figs. 1, 2, and 3, represents a rectangular frame, of wood, co ered with canvas, 1), fig. 1, and of such dimensions as to afford a suitable space for the bed- 1 B are placed a short distance inside of the end of the side bars, asshown at g, fig. 1, for the purpose of facilitating the fitting of the bottom to any of the bedsteads in common use, in the manner fldlowing, viz:

The side rails of such bedsteads are attached to the head and foot-posts by means of metallic hooks, shown at m, fig. 4.

These hooks are made fast to the side rails E, by

meansof stays or cleats c, which latter vary in width.

according to the custom of different makers, so that the space between them, on the side rails E, varies in length.

To fit this bed-bottom to any of these bedsteads, all we have to do is to simply cut oil the required portion of the projecting ends g, fig. 1.

Spiral springs, of any form, either helical or conical, are placed in suitable supports, made fast to the frame B, and their tops kept in position by the usual method of cross-tying, to the frame A, with twine.

A guide-bar, C, of equal length with the top frame A, passes on the under side and lengthwise of the bottom frame B, and is fastened to the latter at suitlle points, equidistant from its centre, by screws h h, 2.

The bar 0 is fastened to the top frame A at its ends, by means of bolts and thimhles D D.

Straps of leather or cloth, e e, fastened at either end to each frame, serve to confine the "frames to any desirable distance apart, which should not be greater than that. fixed by the bolts. and thimbles D l) as shown at e e, fig. 1.

- In using this bed-bottom, when the weight of the necessary bedding is placed upon it, the springs a yield, carrying the guide-bat downward, so that when in use, no contact is bad between it and the bottom frame, except at its points of support.

.If greater weight be at any time placed on one corner, or one side of this bed than on another part,

the effect will be to slightly twist the guide-bar, which, i

by virtueof its elasticity, acting in unison with the springs a a a a, at once returns to its normal form and position the moment the unequal pressure is withdrawn. I

One or more of these guide-bars may be use, if desired, their purpose being solely that of controlling the lateral motion caused by unequal pressure upon different parts of the bed, and to insure an upright positionof the spiral springs, and consequently acentral and horizontal surface of the .bed so soon as any temporary weight is removed.

The advantages claimed to be secured by the use of this bed are many and obvious:

First, lateral motion, which has been found to be most destructive of all kinds of spring-beds, is eti'cctually controlled, and by a very simple and cheap device.

' Second, it dispenses with the use of slats altogether, and hence does away with the noise, and ex- -t-ra trouble, and expense connected, with their use.

Lettcrs Pat- The combination of the gnide-b'ar C and framesA and B, bolts and thimbles D, springs an ac, and canvas b, when constructed and'used substantially as and for the purposes specified.

In testimony that I claim the foregoingQI have hereunto set my hand, this 9th day of April, 1869.

' W.-NEWTON COOK. Witnesses 'MAR'IIN METCALF,

THOMPSON Smomn. 

